Vulcanizer.



PATENTED FEB. 26, 1907.

C. A. SHALER,

VULOANIZER.

APPLICATION FILE D JULY 19, 1906.

lllllllllll 4Imxur IIIIIIIII II [/VVE/VTO/C A ITO/U75 VS UNITE STATES CLARENCE A. SHALER', OF WAUPUN,

PATEN orrron.

WISCONSIN.

\IULCANiZER.

No. 845,272. Specification of Letters want. Patented Feb. 26, 1907.

Application filed July 19. 1906. Serial No. 326,886.

' Waupun, in the. county of Fond du Lac and State of Wisconsin, have invented a new and useful Vulcanizer, of which the following is a v specification.

This invention relates to vulcanizers of that general class employed for repairing the t res of bicycle automobile, and similar vehicle wheels.-

The object of the invention is to provide-a comparatively simple and inexpensive device, of the character described by means of which cuts or punctures in the outer tube or blow-outs to theinner tube of the tire maybe quickly and expeditiously repaired.

A further object is to provide a portable vucan'izer capable of being quickly placed in position on the tire without the necessity of removing thelatter from the wheel rim and which may also be used for repairing the inner tube when the latter is removed from the A further object is to provide a heater ineluding a casing having a flat base and a concaved upper face to conform to the shape of the tire, said heater being operatively'connected with a suitable source energy and having a rheostat associated therewith, whereby the heater may be maintained at a uniform temperature during the vulcanizing operation.

A still further object of the invention is to generally improve this class of devices so as to increase their utility, durability, and.elfii ciency. Y

'With these and other objects in view thev invention consists in "the construction and novel combination and arrangement ofparts, hcreinafter'fully described, and illustrated in the accompanying drawings, it being understood that various changes in form, proportions, and minor details of construction may be resorted to within the scope of the appended claims. I

In the accompanying drawings, forminga part of'this specification, Figure 1 is a top plan view, partly in section, ofvulcanizing apparatus constructed in accordance with my invention. Fig. 2 is an enlarged transverse sectional view taken on the line 2 2 of Fig. 1. Fig. 3 is a side elevation showing the device in position on the outer tube'of the tire. Fig. 4 is a transverse sectional view of Fig. 3. Fig. 5 is a transverse sectional view illustrating a,

i responding parts in of electrical a modified formof the invention. Fig. 6 is a diagrammatical view showing the heatingcoils connected in multiple.

Similar numerals of reference indicate corall ofthe figures of the drawings.

The device comprises a casing or heater 5, preferably cast or otherwise formed of metal and substantially rectangular in shape, as shown, said casing having a flat base 6 and its upper face concaved, as indicated at 7, to conform to the curvature of the tire, whereby the heater may be used for vulcanizing both the inner and outer tubes of a vehicle-tire. Extending laterally from the opposite longitudinaledges of the casing 5 are lugs 8 and 9, having slots 10 formed therein for the reception of bolts or other suitable fastening devices 11, which extend through said openings' and engage a table or other suitable support 12, whereby the vulcanizer may be clamped in position on the inner tube 13 when repairing the latter. The lug Qtermimates in an operating-handle 14, and extended laterally from the casing on eachside of thehandle 14 are binding-bolts 15 and 16, to which are connected the terminals of an electrical circuit 17.

suitable manner, as by screws or similar fastemng dev1ces18, IS a rheostat, provided with a plurality of resistance-coils 20, oper ,atively connected with a plurality of contacts 21, which cooperate-with the movable switch 22, so that by moving the switch successively into engagement with the contacts 21 the temperature of the heater may be regulated at will. 7

Disposed within the heater is a bar or core 23, preferably formed of metal and covered with a layer of mica or other insulating material 24, said corebeing embedded in a mixture of cement and asbestos or other suitable insulating and heat-conducting material 25, "whi ch entirely fills the compartment formed by the casing. a

Connected with the terminals 15 and 16 is a heating-coil 26, the convolutions'of which embrace the core 23 and are thus centered with respect to the opposite walls of the casing. T 1e wires 17 are connected in any suitble manner with a plug or socket 27, so that the .vulcanizer may be connected in a lighting or other electrical circuit.

As a means for determining the tempera- Secured to the base or support 12 in any.

L ture of the heater, there is provided a suit-v ltO able thermometer 28, the opposite ends of which are clamped between lugs 29, extending laterally from one side of the casing, one of said lugs being-detachable, so as to permit the ready removal of the thermometer when desired.

The clamping-screws 11 are provided with suitable wing-nuts and are formed with reduced extensions 31, provided with trans verse openings 32, adapted to receive achain 'or similar flexible medium 33, when the vulcanizer or casing 1s used for repairing the outer tube of the tire, as bestshown in Figs. 3 and 4 of the drawings.

In operation when it is desired to repair a blow-out or other injuly to the inner tube of the tire said tube is removed from the latter and placed in position across the-tableor support 12, after whichthecasing or heater is positioned on the injured portion of the tire and clamped in engagement therewith by adjusting the Wing-nuts 30. The-switch 22 is then rotated so as'to admit the current to the coil 26, thus heating the casing to the desired temperature and effecting the upion'of the severed portion of the. tube. When it is desired to repair a puncture in the outer tube.

the casing 1s removed from the support 12 and reversed, .b eing' placed in osition on the tire with the concaved face earing against the tire, as best-shownin Fig. 3 of the drawings. The terminal 'hooks 34 of the chain 33 are then introduced in the openings 32 of the clampingscrew 11 and the latter adjusted so as to firmly clamp the casing in position onthe tire, as will be readily understood.

In Fig. 5 of the drawings there is illustrated a modified form of the device, in which the heater or casing is preferably formed in two semicircular sections 35 and 36, detachably secured together by bolts or similar fase tening dev ces 37, the cores 38 being curved to conform to the shape of the casing and are those skilled in the art, 83M

provided with heating-coils 39, similar in construction to the coils shown in Fig. 1 of the drawings. When the casing is very large, the core 38 may be formed in sections 40 and the coils 41 connected in multiple with the wires 17, as illustrated in-Fig. 6 of the drawings. The vul'canizers may be made in different sizes and shapes and may be the same a neat attractive appearance.

From the foregoing description it is thought that the construction and operation of the device will be readi] Y understood by I further description thereof is deemed unnecessary.

nickled, plated, or otherwise coated to give Having thus described the invention, what I caved, perforated lugs extending laterally from the casing, clamping devices engaging the perforations in thelugs, a flexible medium connect' the clamping devices, conducting mater ia disposed within thecasing,

and a heating-coil embedded in the cOnducting material and operatively connected with a source of electrical energy.

In testimony that I claim the foregoing as my own I have hereunto aflixed my signature in the presence of two witnesses.

CLARENCE A. SHALER.

Witnesses: I

BEN KAsTEIN, E. A. MA SH. 

